The idea was to take Vintage on Channel 2 and make it sound very similar to Modern on Channel 3. The results ended up being very close, but I didn’t have the time to completely match the EQ (for the most anal of comparisons). The overall response was what I was going for and that is achieved. (more…)

I know I previously stated I would discontinue writing about mods, but this one has been in the back of my head for a long time. A lot of the grind produced by the cold clipping stage is due to the presence of third harmonics (H3). By forcing the idle point to be so close to grid current limiting, the amount of information loss from the distortion is going to produce it.

Yesterday, I was playing around with the Trioda load line program and found an interesting effect. With the parameters set about where the resistances would be for V2b, the cold clipping stage, I was adjusting the cathode value. As the cathode resistance moves from 39k to 10k, the amount of H3 falls to an amount which would become inaudible. (more…)